Lubricator.



J. 0. HILL.

LUBRIGATOR. APPLICATION FILED APR.17, 1908.

902,583; Patented Nov. 3, 1908.

3 SHEETS-.SHEBT 1.

J. O. HILL.

LUBRIGATOR.

APPLIGATION FILED APR.17, 1908.

902,583. Patented Nov. 3, 1908.

8 SHEETSSHBET 2.

Patented Nov. 3, 1908.

3 SHEETS-SHEET 3.

J. G. HILL.

LUBRIGATOR.

APPLIGATION FILED APR.17, 1908.

To all whom it may concern:

- charges of the In ricant is effected in a readyv UNITED srArnis PATENT orrion.

JOHN C. HILL, .OF CHICAGO, ILLINOIS.

LUBRICATOB.

Be it known that I, J OHN C. HILL, acitizen of the United States of America, and a res-ident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Lubricators, of-

February 26, 1906, and has for its object to provide a simple and efficient construction and combination of parts whereby a series of separately re ulated and individual dismanner without undue variation in the power 7 section on line m x Fig. 1.

required to operate the mechanism, all as will.

hereinafter more fully appear. In the accompanying drawings illustrative of the present invention: Figure 1, is a vertical longitudinal section on line w.:c Fig. 2.

Fig. 2, 1s a vertical transverse section on line xm Fig. 1. Fig. 3, is a detail horizontal Fig. 4, is a detail end elevation of theoper'ating cam of the pump plun ers. Fig. 5, 1s a detail side elevation of t e same. detail section on line xx Fi 1 of apump plunger and its accessories. Fig. 7, is a de tail sectional elevation of the worm wheel of the mechanism. Fig. 8, is a detail plan of the same. Fig. 9, is a detached fragmentary perspective view of the lockingcollar and accessories for the guide stems of the pump plungers.

Similar numerals of reference indicate like parts in the several views.

Referring to the drawings, 1 represents an open top casing or housing forming a containing chamber 'for the lubricant and in which the pumping mechanism hereinafter described is arranged in an immersed condition, as usual in the present type, of force feed lubricators.

2, is a removable cover forming a closure for the open top of the casing 1 aforesaid.

3, is the pump casing which in the present construction is provided with a lateral ledge 4 atv its lower end and with upwardly (BX-1 tended members 5 at its respective ends by means of which said casing is secured to and supported by the cover 2 in a dependmg manner inside the casing 1; such members Specification of Letters Patent.

Application filed April 17, 1908. Serial N0. 427,620.

Fig. 6, is an enlarged Patented Nov. 3, 1908.

inaddition provide bearings for the operating cam shaft by which the pump plungers are moved in one direction and pivotaLattachment for the intermediate lifterarms by which themovement of the cams is imparted to' the pum 'plungers as hereinafter more fully set fort The pump casing 3 is formed with a longitudinal series of pump cylinders or chambers 6,'in parallel arrangement, with inlet-outlet ports 7 arranged transversely at the bottom of the pump chambers as shown.

8 are stationary studs on the bottom of the .main casing 1 adapted to engage in" corresponding recesses in the bottom of the pump casing 3, to hold the same in place Within said main casing.

9, is an open top lon itudinal channel formed in the aforesaid le ge 4 with its opposed walls adapted to constitute a seat for the single controlling slide valve hereinafter "described. The inlet-outlet said open through the inner wa l of said chanorts 7 aforenel, while a series of outlet ports or passages 10, alined with the ports 7 aforesald, open through the outer wall of said channel, and are connected by suitable pipe connections 11, preferablywith a sight feed attachment 12, and from thence to the respective bearings orparts'to be lubricated. I

The s1ght feedfattachment above referred to may be of any usual type, such as forms the subject matter of my prior patent No. 85369501 May 14, 1907, or the improved type of the same which forms the subject matter of mycompanion application Serial -No. 427,619 filed April 17, 1908.

13 is the controlling valve above re ferred to and which has its seat or bearin upon the opposed walls of the longitudina c annel 9 and receives intermittent reciprocation from mechanism hereinafter described. Such valve is formed with two series of ports or. passages, one series 14 of which extend transversely through the valve and are adapted to register the inlet-outlet ports 7 of the pump casing with the outlet.

ports 10 above described, while the other series 15 of such ports are of an angular quarter turn form, alternating with the other series of ports, and opening down through the'bottom of the valve 13 to register the inlet-outlet ports 7 of the pum casing, with an open space at the bottom o f the channel 9 which in turn communicates with the interior of the main casing 1, as shown in Fig. 1.

16 is a central com ression s ring arranged between the top of the va ve 13 and a bracket piece 17 on the pump casing, for holding said valve to its seatwhile permit-- ting a free longitudinal movement of the same.

18 are a series of pump plungers individual to the pump cham ers 6 and provided with lateral uide pins 19 engaging a guide comb 20 on t e pump casing to prevent a turning movement of t e plungers during the operation of the apparatus, or in the operation of adjusting the stroke of the plungers, herein= after more particularly described.

21 are a series of sleeves formed with collars near their lower ends upon which bear the hereinafter described series of springs which impart downward movement to the ump plungers; each of said sleeves is ormed with a vertical bore having a reduced screw-threaded lower portion for engagement with the screw-threaded shank of the hereinafter described adjusting connection between said sleeve and a pum plunger. The upper end of said 'bore is aso screwthreaded for the reception of the lower end of a guidev stem hereinafter described.

22 are a series of theguide stems above referred to and which have their lower ends screw-threaded to screw into the upper ends of the vertical bores of the sleeves 21, and are fixedly secured therein by cross pins 23, or other usual provision adapted 'to afford a rigid and permanent connection between'a sleeve 21 and a guide stem 2. Arranged as above the lower end of a guide stem and the offset between the vertical -bore and its reduced lower ortion aforesaid provides anintermediate c amber 24 in which the headed upper end of the above referred to ad'usting connection has limited movement as ereinafter more fully set forth.

The upper ends of the series of guide stems 22 are of a non-circular fornnfor ready engagement with a key or wrench by which they are turned in effecting a change in the stroke of a particular pum plunger, as hereinafter more fully set forth.

25 are guide collars arranged on the under side of the casing cover 2, and having a noncircular orifice engaging the u per ends of the guide stems 22 aforesaid. n the present construction, said collars are formed with series of radial depressions 25 in the face adj acent to the cover 2 and adapted to engage a corresponding rib 2 on the under side of said cover to re uire some manual stress to cause an inde en ent turning movement of a collar, an in consequence will tend to effectively maintain the collars and the guide stems engaged therewith at any adjustment to whic they had been manually turned.

' 22 are a series of springs surrounding the eoaase guide stems 22 and arranged between the sleeves 21 and the guide collars 25 with a normal tendency to depress the pump plungers and parts moving therewith.

26 are hollow ca nuts screwing through the casing cover 2 to orm housings for the upper ends of the guide stems 22 such cap nuts are intended to be removed when access is desiredto the upper ends of the guide stems in eflecting the before mentioned adjustment of thestroke of the pump plungers 27 is the adjustin connection above referred to, and whic consists of a screwthreaded shank having turning engagement in the reduced screwthreaded orifice of the sleeve 21 aforesaid, with its lower end screwed into a pump plunger and permanently secured therein. by a cross in, preferably a guide pin-19 before descri ed. Such shank at its upper end has an enlarged head 28 arranged m the aforesaid intermediate chamber 24 and capable of limited vertical With the described ararts each sleeve 21 can be adjustment therein. rangement of screwed u or own upon the screw-threaded shank of tie connect on 27 a maximum distance equal to the full stroke of the pump plungers, so as to receive the full lift of the cam s by which the pump plungers'are raised, or any desired portion of such lift, and thus regulate the quantity of lubricant pumped at each stroke of any particular pump plunger. The range of adjustment above set forth is controlled by the'movement of the" head 28 in the intermediate chamber 24:and its abutment against one or the other end of said chamber.

' 29 are a series of intermediate lifter arms pivoted atone end to a longitudinal shaft 30, carried by bracket extensions 5 of the members 5 before described Such lifter arms carry bearing shoes 31 midway their length for engagement with the o crating cams hereinafterdescribed, and wlth forked and rounded free ends for engagement beneath the series of sleeves 21 aforesaid. I

32 is the longitudinally operating cam shaft of the mechanism, journaled in the members 5 of the pump casing, with its cam portion 33 common to the series of lifter arms 29 aforesaid.

34 isa worm wheel carried by the cam shaft 32, and operatively engaged by an endless screw carried on an operating shaft 35 which extends outside the main casing 1, through a suitable gland 36, and connected, to a suitable power source.

37 is a pawl and ratchet connection between the worm wheel 34 and the cam shaft 32, adapted to prevent an accidental reverse rotation being imparted to the cam shaft, with a consequent destruction of the operating mechanisms of the pump plungers.

38 and 39 are cam projections or inclines arranged in opposed diametric relation, and

on opposite sides of the worm wheel 34 as shown.

40 is a vertical lever fulcrumed at its upper end-to one of the members 5 of the pump casing, with its lower end in operative en gagement with the slide valve 13, as shown in ig. 1. I

41' are a pair of tappets carried. by the lever- 40 intermediate of its height, and arranged to straddle the worm wheel 34, to be alternately engaged by the cam projections 38 and 39, to impart intermittent movement to the lever 40, and intermittent reciprocation to the slide valve 13, in a continued operation of the apparatus.

42 is the filling orifice of the ap aratus, and 43 the usual wire gauze strainer t erefor. A material feature of the present invention consistsin the formation of the cam portion 33 of the operating cam shaft 32 in two portions arranged in circumferential serial relation with one portion a half a circle in advance of the other, as shown more particularly in Figs. 4 and 5; and in the combination with such cam formation of corresponding ment shown in Figs. 1 and 3. As so'arranged,

and with the valve 13 in the position shown in Fig. 1, the ports of the group to the left will be in register with the two pump chambers to the left to admit the lubricant from the main casing 1 into such pump chambers;

while at the same time the ports or passages of the other group to the right will be in register with the two pump chambers to the right to'permit'of the ubricant contained in said pump chambers being forced to the respective individual bearings to be lubricated. With the valve 13 in its other position, the ports above described as. in active operation are moved into a dormant position, while the previously dormant ports are brought into their active positions to effect a reverse operation on the part of the pumping mechanism, to that above set forth.

The operation of the apparatus is as follows: With a continued rotation of the cam shaft 32, upward movement is communicated from the cam'portions 33 thereof, and through the intermediate lifting arms 29, to thetwo groups of pump plungers alternately to lift them to their full height. During such lifting movement the particular group of pump chambers are incommunication with theinterior of the lubricator casing 1 so as to freely take the lubricant therefrom. As such group of pump plungers reach their -13, is s -&

raised ppsition, the controlling slide valve other of the cam projections 38 and 39, to close communication of said grou of pump chambers with the interior of the ubricator casing, and open said pump chambers to the outlet passages 10. The high part of the articu ar cam portion 33 then moves from beneath the lifting arms and the group of pump plungers are forcibly de ressed by the springs 22 to discharge the ubricant from said pump chambers through said outlet passages 10 and to the point of use.

Simultaneously to .the above operations, the reverse operations of the other group of pump plungers and accessories is taking place.

Having thus fullydescribed my said invention what I claim as new and desire to secure by Letters Patent, is:

1. In a lubricator, the combination of a pump casing formed with a series of pump chambers having inlet-outlet passages at one end, a seriesof plungers in said pump chambers, a valve member formed with an inlet and an outlet passage for each of said pump fted by its lever40 and onefor thechambers, and means for reciprocating the plungers and the valve in timed relation, the inlet and the outlet passages ofthe valve beingarranged in groups having a reversed relation.

3. In a lubricator, the combination of a pump casing formed with a series of pump chambers having inlet-outlet passages at one end, a series of plungers in said pump chambers, a .valve member formed with an inlet and an outlet passage for each of said pump chambers, means for individually adjusting the stroke of said plungers, and means for re-. ciprocating said valve, the inletand outlet passages of the valve being arranged in groups having a reversed relation.

4. In a lubricator, the combination of a pump casing formed with a series of pump pump casing formed With a series of pump chambers having inlet-outlet passages at one end, a series of plungers in said pump chambers, an operating cam shaft having cam formations in circumferential spaced relation, a valve member formed With an inlet and an outlet passage for each of said pump chambers, and means for reciprocating said valve, the inlet and outlet passages of the valve being arranged in groups having a reverse relation. I

6. In a lubricator, the combination of a pump casing formed with a series of pump chambers having inlet-outlet passages atone end, a series of plungers in said pump chambers, an Operating cam shaft having cam formations in circumferential spaced relation, a valve member formed with an inlet and an outlet passage for each of said pump chambers, means for individually adjusting the stroke of said plungers and means for recip rocating said valve, the inlet and. outlet passages of the valve being arranged in groups having a reversed relation.

7. In a lubricator, the combination of a pump casing formed With a series of pump chambers having inlet-outlet passages at one end, a series of plungers in said pump chambers, an operating cam shaft'having cam formations in circumferential spaced relation and adapted to move the plungers in one direction, a series of springs for moving the plungers in the other direction, a valve member formed with an inlet and an outlet passage for each of said pump chambers, and means for reciprocating said valve, the inlet and outlet passa es of the valve being arranged ingroups aving a reversed relation,

8. In a lubricator, the combination of a pump casing formed with a series of pump chambers having inlet-outlet passages at oneend, a series of plungers-in said pump chambers, an operating shaft having cam formations in circumferential spaced relation and adapted to move the plungers in one direction, a series of springs for moving the plungers in the other direction, means for individually adjusting the stroke ofsaid plungers, a valve member formed with an inlet and an outlet passage for each of said pumpchambers, and means for reciprocating said valve, the inlet and the outlet passages of the valve being arranged in groups having a reversed relation.

9. In a lubricator, the combination of a pump casing formed with a'series of pump chambers having inlet-outlet passages at one end, a series of plungers in sald pump chambers, an operating cam shaft having cam formations 1n circumferential s aced relation and adapted to move the p lingers in one direction, a series of springs for moving the plungers in the other direction, a valve member formed with an inlet and an outlet passage-for each of said pump chambers, and- ,aas

chambers having inlet-outlet passages at.

one end, a series of plungers in said pump chambers,- an operating'cam shaft havin cam formations in circumferential space relation and adaptedto move the lungers in one direction, a series of springs or moving the plunger-s in the other direction, means for individually adjustin the stroke of said plungers, a valve member ormed with an inlet and an outlet passage for each of said pumlp. chambers, and means intermediate of t e camshaft and the valve for reciprocating the valve in timed relation with the, plungers, the inlet and outlet passages of the valve being arranged in groups having a reversed relation.

11. In a lubricator, the combination of a pump casing formed with a series of pump chambers having inlet-outlet passages at one end, a series of plungers in said pump chambers, a valve member formed with an inlet and an outlet passage for each of said pump chambers, means for reciprocating the in arms, s eeves adjustably connected to the ungers and engaged by the lifting arms, gui e stems attached to said sleeves and ada ted to effect individual adjustments of sai1 sleeves, and means for reciprocating said va ve.

pump cylinder, a plunger moving in the same, means for impartin movement to said plunger, and means or holding the plunger from rotation the same comprisin a non-circular stem on the plunger, a co ar having a non-circular orifice fitting said stem and rovided with a series of radial depresslons in one face,- and a guide for said stem having a surface ridge for engagement with said de ressions.

main containing casing, a pump casing arranged insaid main casing andformed with a series of pump chambers having inlet-outlet passages at one end, a series of plun ers in said. pump chambers, a valve member ormed with an inlet and an outlet passage for each of said pump chambers, and means for reciprocatlng said valve, the inlet and outlet passages of the valve being arranged in groups having a reversed relation.

14. In a lubricator, the combination of a main containing casing, a pump casing arranged in said main casing and formed with a series of pump chambers havin inlet-outlet passages at one end, a series 0 plungers in said pump chambers, a-valve member formed 'piungers comprising in part intermediate 12. In a-lubricator the combination of a 13. In a ubricator the combination of a i in said pump chambers, a valve member formed with an inletand an outlet passage for each of said pump chambers, means for individually adjusting the stroke of said plungers, and means for reciprocating said valve, the-inlet and outlet passages of the valve being arranged in groups havingta reversed relation.

16. In a lubricator the combination of a main containing casing, a pump casing ar-.

ranged in said main casing and formed with a series of pump chambers having inlet-outlet passages at one end a series of plungers in said pump chambers, a valve member formed with an inlet and an outlet passage for each of said ump chambers, means for individually ad usting the stroke of said plungers, and means for reciprocating -the plungers and the valve intimed relation, the inlet and outlet passages of the valve being arranged in grou s havin a reversed relation.

- 17. n a lubrlcator, the combination of a main containing casing, a pump casing arranged in said-main casing and rmed with a series of pump chambers having inlet-outsai pump chambers, an operating cam shaft havin cam formations in circumferential spaced relation, a valve member formed with an inlet and an outlet passage for each of said pump chambers, and means for reciprocating said valve, the inlet and outlet passages of the valve being arranged in groups having a reversed relation.

18'. In a lubricator, the combination of a main containing casing-, a pump casing arranged in said main casing and formed with i valve, the inlet and outlet passages of the valve being arranged ingroups having a reversed relatlon.

19. In a lubricatdn the combination of a main containing casing, a pump casing arranged in said'main'casing and formed With sleeves and a let (passages at one end, a series of plungers in pump cylinder, a plunger moving the sions, and a 1a aseag-es at one and, a series of lpagers' in sai pump chamber, an operatingcam shaft havin" cam formations in circumferential ssee relation and adapted. to move-the z piinge'rs one direction, an o eratiiig or movin the plungers in t e other irec tion, a va ve member formed with aninlet and anoutlet Cpassage for each of said pumpranged in groups having a reversed rel'ation.

20. In a lubricator the combination of a main containing casing, a pum casing arranged in said main casing and ormed with a series of pump chambers having inlet-outletpassages at one 'end,-a series of plungers in sai with an inlet and an outlet passage for each of said pump chambers, means for reciprocating t e plungers comprising in part intermediate lifting arms, sleevesadjustably connected to the plungers and engaged'by the lifting arms, uide stems attached to said dapted to efiect individual adpump chambers, a valve member formed justment of said sleeve, and means for reciprocating said valve.

- 21. In a l bricator, the combination of an I 0 en to containin casin a removable cover therefor, a pump casing supported in the containing casing byvertica members connecting the pum casing with the removable cover, and fixe studs on the bottom of the containing casing engaging recesses in the bottomof the pump casing. p

22. In a lubricator,v the combination of a same, means for impartingmovement to said plunger, and means for holding the plunger rom rotation the same comprlsmg a non' cir cular stem on the plunger, a collar-:-,having a non-circular orifice fitting said stem and provided with a series of radial depressionsin one face, a guidefor said stems having a surface ridge for 1engagement with such depresmoving the lun' er in one direction, a spring for moving t e p unger in the other direction,

and means for holding the plunger from rotaow'cap nutscrewing into tion, the same comprising a non-circular stem on the lunger, a collar having a non-circular orifice' tting said stem and provided with a series of radiaLdepressions in one face, and a guide for said stem having a surface ridge for engagement with said depressions.

24. In a lubricator, the combination of a pump cylinder, a plunger moving in the same,

1 a cam shaft and intermediate arm for moving a series of pump chambers having inletouti the plungerin one direction, a spring for 13! moving the plunger in the other direction, 1 foriii e'liousing' for the upper end of said 1:)

and means for holding the plunger from rotaguide stem. tion, the same comprising a non-circular Signed at Chicago, Illinois this 14th day of stem 0n the plunger, a collar having a non- I April 1908. 5 circular orifice fitting said stem and provided l with a series of radial depressions in one face, v a, guide for said stems having a surface ridge Witnesses: for engagement with such depressions, and a ROBERT BURNS, hollow cap nut screwing into said guide to HENRY MOE.

JOHN G. HILL. 

